P systems and context-free 2D picture languages

In membrane computing, P system has proved to be a rich framework for handling a variety of problems arising in different areas. In this note we examine an array-rewriting P system for rectangular picture array generation. This system makes use of Pure 2D context-free grammar rules in its regions. We obtain certain comparison results that bring out the suitability of this P system model in increasing the generative power of picture generation.